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Finding the Fourth Proportional to 496,398.90, 744,376.91 and 141,329.85

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Solution

The fourth proportional to 496,398.90, 744,376.91 and 141,329.85 is: 211,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,398.90 : 744,376.91 = 141,329.85 : x
  2. Step 2: Convert to fraction form
    496,398.90/744,376.91 = 141,329.85/x
  3. Step 3: Cross multiply
    496,398.90x = 744,376.91 × 141,329.85
  4. Step 4: Simplify right side
    496,398.90x = 105,202,676,327.11
  5. Step 5: Solve for x
    x = 105,202,676,327.11/496,398.90
  6. Step 6: Final answer
    x = 211,931.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.